The new generation Atrezzo ZS-R is engineered to deliver precise wet and dry handling characteristics. An asymmetrical design and enhanced rubber compound rises to the challenge and provides exceptional performance on the street or on the highway. Asymmetrical tread design for uncompromising performance. Wide shoulder tread block with high angle sipes for high-speed cornering performance. Variable pitch tread design provides a smooth, quiet ride. Advance tread compound delivers superior cornering and exceptional handling. Deep, circumferential grooves and hundreds of biting edges deliver excellent wet and dry traction.